{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328894",
    "entityType": "User",
    "nonce": "0x9fd156c292c1ef062d22a5ceac3b956db1ea8e2102e788c0a96cc138db79c6f6",
    "signature": "0xed7972213ac543ba3d050f0e4f6ee7d68e6edd796d698b3c920da7b21c2bf68031a6bc64164029b5fe6f5e05d3479b766aa75e00c65e363f72793d759b5a27261b",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}